Proterra Investor Presentation Deck

Execution on Production and Delivery Growth for Years Though Covid-19 Pandemic Impacted Transit Production in 2020 Powered Battery System Deliveries 3 2018 20 2019 107 2020 © 2022 Proterra. All Rights Reserved. 273 2021 135 2018 Transit Bus Deliveries 177 2019 170 2020 208¹ 2021 1. Represents new electric bus deliveries and excludes an additional 9 used bus deliveries in 2021 75 2018 MWh Battery Production 107 2019 111 PROTERRA 2020 189 2021 21

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